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Nerve Testing - Lower Extremity: Straight-Leg Raise

1. The term "Mechanosensitivity" describes the sensitivity of peripheral nerves to limb movement.

A. True

B. False


2. The proposed interpretations of a 'positive' test include considerations of all of the following:

A. Reproduces the patient's symptoms

B. Identifies asymmetry between limbs

C. Induces changes in symptoms by distant joint movement, also called "sensitizing movements"

D. All of the above


3. Sensitizing movements involve adding a limb movement proximal to the location of symptoms that would affect the neural structures in the limb without affecting the nonneural tissue local to the area of the symptoms.

A. True

B. False


4. What movement is a common sensitizing maneuver for SLR testing?

A. Ankle dorsiflexion

B. Ankle plantarflexion

C. Knee flexion

D. Hip internal rotation


5. In the study presented, mass muscle activation pattern presents earlier in the SLR if the limb is in ankle dorsiflexion.

A. True

B. False


6. Which of the following statements is FALSE?

A. The addition of ankle dorsiflexion to the base SLR provoked more tension, tightness, and burning, and more distal location of symptoms.

B. In the healthy subjects of the study presented, pain and numbness was reported often.

C. SLR testing in people with lower limb radicular pain has been found to provoke reports of pain in 83% of the symptomatic limbs at a means of only 58 degrees hip flexion.

D. None of the above is false.


7. Movement of the pelvis or lumbar spine would be an appropriate end point for the SLR test when used as a neurodynamic test.

A. True

B. False


8. In the study presented, altered ankle position of only what degrees between PF-SLR and DF-SLR created differences in hip ROM, symptom intensity, and muscle activation?

A. 10 degrees

B. 20 degrees

C. 30 degrees

D. 40 degrees


9. Normal protective muscle guarding induced by the nervous system to avoid overstretch in healthy individuals should be considered when assessing resistance felt during SLR testing and considered when prescribing muscle and soft tissue stretches.

A. True

B. False


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